Power booster for raising large type umbrellas



April 1950 P. DE SAMELSON 2,503,032

POWER BOOSTER FOR RAISING LARGE TYPE UMBRELLAS Filed Dec. 17, 1948 2Sheets-Sheet 1 (k $4M, V A7 gNEYs April 4, 1950 IPVDE SAMEL'SON2,503,032 I POWER BOOSTER FOR RAISING LARGE TYPE UMBRELLAS Filed Deg.17, 1948 I A 2 Sheets-Sheet 2 ATTORNEYS On the opposite end of thesleeve I3, is thebase I! secured thereto by any suitable means orintegrally formed therewith. It will be noted that there is no openingaround the periphery of the base Il aligned with the extrusion I so thatwhile the upper portion of the sleeve I3 will pass over the spring catchI2, the bottom of the base I! after passing thereover will come to restwhen free on the catch I2 until released. The base I! may be made fromany suitable substantially flat surface material in which the sides I8and I9 are in spaced parallel arrangement as most clearly shown inFigure 3 while on the end opposite the catch I2 are two turned up carsand 2| in spaced parallel arrangement and in close proximity to thestafi Ill which provide the rotatable supports for the cam members 22and 23 described infra.

Slidable on the sleeve I3 is the rib collar I4 which pivotally supportsthe ribs 24 in a known manner. Of course, to be slidable on the sleeveI3, the collar 22 is equipped with a longitudinal extrusion coactingwith the extrusion I5 in the sleeve. To prevent the sleeve l3 fromslipping out of the collar l4 when free to slide along the staff I0, thepreviously mentioned flange I6 is made with a greater diameter than thediameter of the collar I4.

The cam members 22 and 23 are located adjacent the sides l8 and I9 ofthe base I! and are keyed by any suitable means to a connecting rod 26which is rotatably inserted through aligned openings in theaforementioned ears 2|] and 2|. Keyed to the connecting rod 26 is thehandle member 21 designed to rotate through some 180 in a line parallelto the center line of the staff Ill. The handle member 2'! is made ofsuificient length to require a minimum amount of physical effort inoperating the cams within the limits of the available space. Theperipheries of the cams 22 and 23 are in contact with the base of thecollar I4 while being rotated by the handle member 2'! as shownespecially in Figure 2 and are so formed that when moved to theuppermost position the collapsible covering I I will be in the fullyopened position.

The operation is as follows:

Assuming that it is desired to raise a collapsed umbrella of large typein the sand, the free end of the stafi I El is inserted in the sand withthe covering I I in the collapsed or in the partially collapsedposition, that is with the bottom of the base I1 of the sleeve I3supported by the spring catch I2. Generally by swinging the umbrellafrom side to side with some downwardly exertedforce the stafi I 0 willbe suificiently buried withslight effort. With the collapsible coveringII in the collapsed position, the sleeve I3 is pushed upwardly until thebase I! thereof is resting on the catch I2, Then, the handle member 21is rotated downwardly which rotates the cam members 22 and 23 upwardlythereby pushing the slidable collar I4 upwardly until the handle member21 is at rest along the staff I0. Of course, the handle member 21 couldbe locked in position alongside the staff I 0 if desired. Thepositioning of the spring catch I2 and the magnitude of the movement ofthe collar I4 by the cams 22 and 23 is so arranged that the collapsiblecovering II is moved from a slightly collapsed position attained withlittle physical efiort to the fully extended position with but slightlymore effort when aided by the leverage action provided. The loweringoperation is substantially the reversal of the previous steps but it isto be noted that when the handle member 26 is in the up position, thatis with the collapsible covering slightly collapsed, and the tensionremoved from the coverin II, the manual release of the spring catch l2to completely lower the umbrella is attained with but slight danger ofphysical mishap.

Referring now in greater detail to the bar lever power. booster. orsecond embodiment shown in Figures 6 through 11, reference numeral 28indicates the staff, 29 the slidable base, 30 the rib collar, and 3| thebar lever power booster.

The staff 28 is similar to the previously described staff Ill of thefirst embodiment. The spring catch 33 is similar to the spring catch I2of the first embodiment and moved, compared with standard present dayconstruction, further toward the free end of the stafi as in the firstembodiment. The slidable base 29 and the rib collar 33, on the otherhand, differ from corresponding elements of the first embodiment inseveral respects. The slidable base 29 may be formed with an extrusion34 and a base member 35 with no aligned extrusion in order that the base29 may be releasably held by the catch 33. On the other hand, the base29 could be made without the extrusion 34, the essentials of the base 29being suitable provision for releasably supporting the same by the catch33 and the provision of two outwardly directed ears 36 and 31 for thepivotal support of part of the bar lever mechanism 3| described infra.The ears 3B and 31 have registered openings for the insertion of thepivot pins 38 and 39, respectively. The rib collar 30 is similar to therib collar I4 of the first embodiment in respect to an extrusion 32 forslipping over the spring catch 33 but differs therefrom by beingprovided with the ears 45 and 46 in planes parallel with the planes ofthe previously mentioned ears 36 and 31 but within the latter planes andprovided with registered openings for similar pivot pins 41 and 48, bothsets of cars forming the pivotal supports for the later described barlever mechanism 3|.

The bar lever mechanism 3| comprises the handle member and the linkmembers 4| and 42.

The handle member 40 has one cross membe 43 and a second cross member44, the cross member 43 having a greater width than the cross member 44although other designs could be used. The ends of the second crossmember 44 are pivotally secured between the ears 45 and 46 disposed onthe rib collar 30 by the pivot pins 41 and 48. The first cross member;43in turn is pivotally secured between the ends of the links 4| and 42by any suitable means: 'The opposite ends of the links 4| and 42 arepivotally secured to the ears 36 and 3'! previously mentioned inconnection with the movable base 29 by any pivotal mounting means 38 and39.

The operation of the second embodiment is as follows:

The previously mentioned beneficial features of the first embodiment arepresent in the second with the additional advantages of cheapnessofconstruction, and greater facility in handling "-rwithelessrhazardttohthe33 whichprovides the-basic.supportiorxthe lever- ,theoperatorshasrraisedthe movable "base to the v sameness and filtlieiaoperator. thefsleeve opposite.theacollapsiblemover- With the handlemembermc. r lever hetoppo'sitenendnolthe;sleeve being' turned booster 3t inithe'upposition as shown in Figure outwardl rib 'collarslidable= :onthex sleeve, 6, the umbrella covering is only partially open one "endonithei ribs being pivotedto thezcollar but the movable '-base 29**is'atrest on the catch and thea opposite end :supporting the coveringwhenaisedya spring catch disposed:- on-"the st'afi coaetingwithethewex-trusion on the \i sleeve afid adapted t :support the -base of thesleeve releasposition "shown in Figure 6,. a suitable and conablyiwhelithe covering sisin the:'-partially-*open venient grasping meanshasbeenprovided within positioma:cam pivotally disposed on' tha sleeve ageoperations. It should berrnotedaithatzwhen out-interference-with anyorthe other-" mechacacoa'ctingewithtthe rib collar and -adapted to' raisenism. Graspingrthe z'handle 'dllz and pulling it thezrib:colianirieleasably from the partiallly'open downwardly through theposition as shown in liposition of the covering when supported' by theFigure--10, the rib collarfifiifl is moved ,upwardly i springitcatchi tothe iullyopen-zposition. towardthe' finalgoalsince thdlinks flhand 42ami 59 In amumbrellai havinga staffy apollapsible are revolving downwardlyabout the pivot points covering, and ribs; a power booster comprising 38and 39 until the position shown in Figure is a sleeve slidable on thestaff, the sleeve having {attained and then reverse their direction of alongitudinal protrusion on one side, a rib colmovement. At the sametime, the second cross lar slidable on the sleeve and adapted for themember 44 is moving upwardly about the pivot pivotal connection of oneend of the ribs, the rib points 47 and 48 and raising the rib collar 30.collar having a longitudinal protrusion coacting Continuing the movementof the handle member with the longitudinal protrusion on the sleeve, 40downwardly, as shown in Figure 11, the rib a flange on the end of thesleeve on the side of collar 30 is moved to the designed uppermost thecovering, the outside diameter of the flange position with the linkmembers 4! and 42 again being greater than the outside diameter of themoved inwardly as shown in Figure 11. When rib collar and having anopening aligned with collapsing the umbrella, the previously describedthe coacting protrusions of the sleeve and rib raisingprocedure isreversed permitting thetcolcollar, a base disposed on the opposite endof lapsing of the covering with but slight effort and the sleeve, aspring catch disposed on the staff a minimum of danger to the person ofthe opcoacting with the protrusions 0n the sleeve and erator. theopening in the flange and adapted to support It is apparent that thespecific illustrations the base of the collar at a point of partialopening s O v n iven by y of illustration and of the covering, a camdisposed on either side of not by way of limitation and that thestructure th base and adapted to coact with the collar, op-

above described is subject to awide variation and posed supports for thecams disposed on the ,modification without departing from the scope baseand substantially 0n the side opposite the or intent of the invention,all of which variations spring catch, the supports having an aligned andmodifications are to be included within the opening therethrough, aconnecting rod for the scope of the present invention. cams rotatablydisposed through the openings, What is claimed is: 44) means securingthe cams to the connecting rod 1. In an umbrella having a stafi', a ribcollar, and adapted to be rotated thereby, and a handle ribs, a springcatch disposed on the staff, a movmember for the connecting rod andadapted to able base member, said spring catch being rotate the same.adapted to l a ly supp rt he base m m r in 6. In an umbrella having astaff, a rib collar, the partially Op position of the ribs, a lever- 45ribs, a movable base member, a spring catch disage means between thebase member and rib posed on the stafi and adapted to releasablysupcollar and adapted to raise the ribs to the fully port the basemember in the partially open pogin position. tion of the ribs and meansbetween the base mem- An umbrella Comprising & Stafi, a 11191001131 herand rib collar and adapted to raise the ribs slidable 0n the stall,collapsible covering ribs, one to the fully openposition.

end 0f the s being p d Oh the rib collar, 7. In an umbrella having astaff, a rib collar, a movable base member, a Spring catch disribs, amovable base member, a spring catch disposed on the staff and adapted toreleasably supposed on t taff and adapted t releasably portthe basemember in the partially open poport the base member in t partially openposisition of the ribs, and leverage means between mm of the ribs andpower means between the the base member and uh collar, and adapted tobase member and rib collar and adapted to raise support the rib collarreleasably in the fully open the ribs to the fully open positionposition of the ribs.

3. In an umbrella having a staiia collapsible An umbre} compilsmg. mstafi', a collapsible covering, ribs supporting said covering, and ribs,a power booster comprising (in n tn aid rib and a sleeve slidable on thestall, a rib collar slidable q H CO ar suptmr 1 g S i S on the sleeveandwithin the limits of the ends shdable manually upon F partmuy thereof,means pivotally securing one end of the Open position of Said00112119511019 covermgi a base member, a leverage system connecting saidbase ribs to the rib collar, the opposite ends of the ribs being adaptedto support the collapsible cov- 6 member and 11b collar and movmg 52ndnb ering, a spring catch disposed on the stall and 1811' from SaidPartially 010911 P n 0 a fully adaptedto support the sleeve releasablyin the p p d a catch upon said fi r partially open position of thecollapsible covering, maintaining Said base member in S Partially andleverage means between the rib collar and Op position.

sleeve and adapted to raise the collapsible cov- In 9. An umbrellacomprising in combination a erin r leasably to h fully op n position.stair, a collapsible covering, ribs supporting said 4. In an umbrellahaving a staff, a collapsible covering, a rib collar supporting saidribs, a slidcovering, and ribs; a power booster comprising a able basemember coacting With the rib collar and sleeve slidable on the stall,the sleeve having a slidably manually therewith upon said shaft tolongitudinal extrusion on one side, a base on the 7 the partially openposition of said collapsible covering, a spring catch disposed in thestaff and releasably supporting the slidable base member in thepartially open position of the collapsible covering, and a leveragesystem between the slidable base member and the rib collar and adaptedto raise said rib collar from the partial to the fully open position ofthe collapsible covering, the leverage system comprising a handlemember, a first and second cross member disposed at one end of thehandle member and protruding on either side thereof, means pivotallysecuring the ends of the second cross member to the rib collar, linkmembers between the base member and the ends of the first cross memberof the handle member, and means pivotally securing the ends of the 15link members to the ends of the first cross member and to the basemember.

PAUL DE SAMELSON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS 1 Number Name Date 32,861 Davis July 23, 1861FOREIGN PATENTS Number Country Date Switzerland Nov. 21, 1910

